PACE1754 datasheet(1/20 Pages) PYRAMID

부품명	PACE1754

상세설명	SINGLE CHIP, 40MHz CMOS PROCESSOR INTERFACE CIRCUIT (PIC)

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제조업체	PYRAMID [Pyramid Semiconductor Corporation]

홈페이지	http://www.pyramidsemiconductor.com

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Document # MICRO-5 REV C

Revised November 2005

PACE1754

SINGLE CHIP, 40MHz CMOS

PROCESSOR INTERFACE CIRCUIT (PIC)

FEATURES

The PACE1754 (PIC) is a support chip for the

PACE1750A/AE Processor. It eliminates the SSI/

MSI Logic and external system functions

required in typical 1750A implementations.

Provides a significant savings in part-count and

power dissipation enhancing reliability and

overall system speed performance.

Provides an optimal interface when used with

the PACE1753 MMU/COMBO in a full 1750A

implementation.

Provides the following additional important

system functions:

— Programmable READY for memory and I/O

— Automatic READY during self-test and

internal I/O instructions

— 100KHz timer clock output provided

— Programmable system watchdog—ranges

from 1 µs to 1 minute

— Programmable Bus time-out function

— Memory Parity generation/detection

— Error detection of unimplemented memory

and/or I/O space addressing

— First failing memory address register for

diagnostics

— High drive three-state address latches

— Built-in system test program—automatically

tests the PACE1750A/AE CPU, PACE1753

MMU/COMBO, PACE1754 PIC and system

address lines as well as memory and I/O

strobes

— System configuration decoding and buffering

— Interrupt acknowledge decoder and strobe

— Start up ROM support per MIL-STD-1750A

— Memory or I/O READ/WRITE three-state

strobes with external three-state control for

DMA applications

20, 30 and 40 MHz operation over full Military

Temperature Range

Single 5V ± 10% Power Supply

Power Dissipation over Military Temperature

Range

< 0.25 watts at 20 MHz

< 0.30 watts at 30 MHz

< 0.35 watts at 40 MHz

Available in:

— 64-Pin DIP or Gull Wing (50 Mil Pin centers)

— 68-Pin Pin Grid Array (PGA) (100 Mil centers)

— 68-Lead Quad Pack

PACE1754 PROCESSOR INTERFACE

CIRCUIT DESCRIPTION

The PACE1754 Processor Interface Circuit (PIC) is a

single chip implementation of many special system

functions that are often required when using the

PACE1750A/AE,

single

chip,

40MHz

CMOS

Microprocessor. The PIC allows a system designer to

design a higher performance, more effecient

microprocessor system which uses less power and takes

up less board space than was previously possible.

In addition to providing significant savings in part count

and power dissipation the PIC uses only a 5V ±10%, single

supply and operates at 20, 30 and 40 MHz over the fully

Military Temperature Range. The PIC provides many

important system functions. These functions are governed

by respective bit positions in a programmable Control

Register which is incorporated in the PIC. The individual

bits of the control register are set to select the various

features and are set to a specified default value upon

Reset.

유사한 부품 번호 - PACE1754

제조업체	부품명	데이터시트	상세설명
Pyramid Semiconductor C...	PACE1750A	229Kb / 24P	SINGLE CHIP, 15MHz to 40MHz, CMOS 16-BIT PROCESSOR
	PACE1750AE	230Kb / 25P	SINGLE CHIP, 20MHz to 40MHz, ENHANCED CMOS 16-BIT PROCESSOR
	PACE1753	187Kb / 21P	SINGLE CHIP, 40MHz CMOS MMU/COMBO
	PACE1757M	651Kb / 34P	COMPLETE EMBEDDED CPU SUBSYSTEM
	PACE1757ME	651Kb / 34P	COMPLETE EMBEDDED CPU SUBSYSTEM

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